Attempts to keep the practice secret, even from judges, is raising questions as to just how prevalent police spying is within the Sunshine State.

The controversy stems from the arrest of James L. Thomas, a criminal suspect believed to be in possession of a stolen phone. Tallahassee police located and arrested Thomas by tracking a cell phone signal, then promptly searched his home.

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It later became known that police didn’t seek a warrant or admit to using a little-known surveillance device called a “Stingray.”